Rotary kiln process for iron ore oxide pellet production is hard to detect and control.Construction of one-dimensional model of temperature field in rotary kiln was described.And the results lay a solid foundation for...Rotary kiln process for iron ore oxide pellet production is hard to detect and control.Construction of one-dimensional model of temperature field in rotary kiln was described.And the results lay a solid foundation for online control.Establishment of kiln process control expert system was presented,with maximum temperature of pellet and gas temperature at the feed end as control cores,and interval estimate as control strategy.Software was developed and put into application in a pellet plant.The results show that control guidance of this system is accurate and effective.After production application for nearly one year,the compressive strength and first grade rate of pellet are increased by 86 N and 2.54%,respectively,while FeO content is 0.05% lowered.This system can reveal detailed information of real time kiln process,and provide a powerful tool for online control of pellet production.展开更多
The soccer is an extremely universal movement that has received populace’s affection, natural, the soccer teaching also entered university’s classroom that becomes in the university physical education the important ...The soccer is an extremely universal movement that has received populace’s affection, natural, the soccer teaching also entered university’s classroom that becomes in the university physical education the important constituent. Speaking of the university students, the soccer is not merely the simple sports project which may help the student more importantly to build up strength the healthy body, enriches own after school life, therefore has received the general university student’s affection, moreover the soccer also has the unique charm, it has the oneself quite obvious characteristic in the sports, for instance its grouping development, location request and so on, these all deep attraction student vision, simultaneously also have been receiving the social people from all walks of life’s widespread attention. Nowadays, in the physical education curriculum of colleges and universities, the teaching of students’ football is mainly the knowledge and skill of soccer, ignoring the cooperation between the students. This traditional teaching mode cannot adapt to the teaching reform and quality education The implementation of physical education teachers in the teaching of football has been controversial and questioned, this is all the college physical education teachers face new challenges and new problems. This paper mainly analyzes and discusses the problems existing in college football teaching, aiming at these problems puts forward the corresponding reform measures and optimization strategy, and hope to provide certain reference for the development of football teaching in colleges and universities.展开更多
基金Project(NCET-05-0630) supported by Program for New Century Excellent Talents in University of China
文摘Rotary kiln process for iron ore oxide pellet production is hard to detect and control.Construction of one-dimensional model of temperature field in rotary kiln was described.And the results lay a solid foundation for online control.Establishment of kiln process control expert system was presented,with maximum temperature of pellet and gas temperature at the feed end as control cores,and interval estimate as control strategy.Software was developed and put into application in a pellet plant.The results show that control guidance of this system is accurate and effective.After production application for nearly one year,the compressive strength and first grade rate of pellet are increased by 86 N and 2.54%,respectively,while FeO content is 0.05% lowered.This system can reveal detailed information of real time kiln process,and provide a powerful tool for online control of pellet production.
文摘The soccer is an extremely universal movement that has received populace’s affection, natural, the soccer teaching also entered university’s classroom that becomes in the university physical education the important constituent. Speaking of the university students, the soccer is not merely the simple sports project which may help the student more importantly to build up strength the healthy body, enriches own after school life, therefore has received the general university student’s affection, moreover the soccer also has the unique charm, it has the oneself quite obvious characteristic in the sports, for instance its grouping development, location request and so on, these all deep attraction student vision, simultaneously also have been receiving the social people from all walks of life’s widespread attention. Nowadays, in the physical education curriculum of colleges and universities, the teaching of students’ football is mainly the knowledge and skill of soccer, ignoring the cooperation between the students. This traditional teaching mode cannot adapt to the teaching reform and quality education The implementation of physical education teachers in the teaching of football has been controversial and questioned, this is all the college physical education teachers face new challenges and new problems. This paper mainly analyzes and discusses the problems existing in college football teaching, aiming at these problems puts forward the corresponding reform measures and optimization strategy, and hope to provide certain reference for the development of football teaching in colleges and universities.
